Deprecate btn-warning on admin area delete user modal

app/assets/javascripts/pages/admin/users/components/delete_user_modal.vue

@@ -119,8 +119,8 @@ export default {
       <gl-button @click="onCancel">{{ s__('Cancel') }}</gl-button>
       <gl-button
         :disabled="!canSubmit"
-        category="primary"
-        variant="warning"
+        category="secondary"
+        variant="danger"
         @click="onSecondaryAction"
       >
         {{ secondaryAction }}

changelogs/unreleased/326038-delete-user-modal.yml

+---
+title: Deprecate btn-warning on admin area delete user modal
+merge_request: 57761
+author:
+type: changed

spec/frontend/pages/admin/users/components/__snapshots__/delete_user_modal_spec.js.snap

@@ -50,11 +50,11 @@ exports[`User Operation confirmation modal renders modal with form included 1`]
    
   <gl-button-stub
     buttontextclasses=""
-    category="primary"
+    category="secondary"
     disabled="true"
     icon=""
     size="medium"
-    variant="warning"
+    variant="danger"
   >
     
       secondaryAction

spec/frontend/pages/admin/users/components/delete_user_modal_spec.js

@@ -11,15 +11,15 @@ describe('User Operation confirmation modal', () => {
   let wrapper;
   let formSubmitSpy;
 
-  const findButton = (variant) =>
+  const findButton = (category) =>
     wrapper
       .findAll(GlButton)
-      .filter((w) => w.attributes('variant') === variant)
+      .filter((w) => w.attributes('category') === category)
       .at(0);
   const findForm = () => wrapper.find('form');
   const findUsernameInput = () => wrapper.find(GlFormInput);
-  const findPrimaryButton = () => findButton('danger');
-  const findSecondaryButton = () => findButton('warning');
+  const findPrimaryButton = () => findButton('primary');
+  const findSecondaryButton = () => findButton('secondary');
   const findAuthenticityToken = () => new FormData(findForm().element).get('authenticity_token');
   const getUsername = () => findUsernameInput().attributes('value');
   const getMethodParam = () => new FormData(findForm().element).get('_method');